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A constant current of 5.00mA is allowed to flow through an electrochemical cell for 528 seconds as Ag+ is reduced to silver metal from 100.0mL of an aqueous sample. If all the Ag+ reduced and all of the applied current was used for this reduction, what was the original concentration of Ag+ in the sample?
Suppose a 500mL solution contains 2.00 millimoles of Co(NO3)2, 150.0 millimoles of NH3, and 150.0 milllimoles of Ethylendediamine (en). What is the concentration of Cobalt 2+ (aq) in the solution?
What is the partial pressure of each gas and total pressure of the mixture of gaases, in atmospheres, in the container?
The pressure in the eye of a hurricane is less than atmospheric pressure. Which one of the following pressure readings could not have been taken
isotope has a natural abundance of 57.21% and an atomic mass of 120.90382 amu. Calculate the percent abundance and atomic mass of the 123^Sb isoyope
What is the pH of a buffer prepared by adding 180 mL of 0.100 M NaOH to 200 mL of 0.100 M acetic acid? (Ka for CH3COOH = 1.8 x 10-5)
What is the total mass of bovine serum albumin (BSA) in 50 ml of BSA at 4% (wt./vol), given in milligrams? What is the answer in micrograms?
what is the partial pressure of NOCl which reacted in order for the partial pressure of NO to be .084 atm? what is the partial pressure of Cl_2 at equilibrium what is the magnitude of K_p for the equation above?
The activation energy for the following reaction is 60. kJ/mol. Sn2+ + 2Co3+ → Sn4+ + 2Co2+ By what factor (how many times) will the rate constant increase.
a sample of a certain beverage contains 1.00g of tartaric acid, H2C4H4O6. The beverage is titrated with 0.100M NaOH, how many millimeters of base are required to neutralize the tartaric acid.
Draw the Lewis structure of the major resonance form of the thiosulfate ion, S2O3 2-. Include all lone pairs of electrons. Include formal charges on atoms with charges.
An airplane is pressurized to 650 mm,Hg}, which is the atmospheric pressure at a ski resort at 1.30×104 ft altitude. If air is 21 % oxygen, what is the partial pressure of oxygen on the plane?
The recommended adult dose of Elixophyllin, is 6.0 mg/kg of body mass. calculate the dose in milligrams for a 120 lb person.
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